docs: Revise Security Monitoring guides and remove outdated install guide

Author: travisamartin

content/nap-waf/v4/admin-guide/install-nms.md

@@ -21,7 +21,7 @@ weight: 100
 
 [NGINX Management Suite Security Monitoring]({{< relref "/nms/about.md#security-monitoring" >}}) provides a centralized visualization tool that lets you analyze threats, view protection insights, and identify areas for policy tuning.
 
-- For more information on how to configure Security Monitoring, see [Set Up App Protect Instances for Security Monitoring]({{< relref "/nim/monitoring/security-monitoring/configure/set-up-app-protect-instances.md" >}}).
+- For more information on how to configure Security Monitoring, see [Set Up App Protect Instances for Security Monitoring]({{< relref "/nim/monitoring/security-monitoring/set-up-app-protect-instances.md" >}}).
 
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